Get it installed by Tata motors. Open market there can be issues including warranty, they will give a separate screen, whether it has marking lines or not, without marking lines it is not useful ...

The number of reasons to install a dash cam (personal protection, proof in a crash, outing dunderhead drivers on social media ...

For this, we'd suggest you please visit the nearest authorized service centre of Tata as they would be able to assist you. Follow the link and select your city accordingly for service centers.